code: def test_string_response(self):
      response = self.df.chat("man of match in final")
      self.assertTrue(response.lower().find("dp conway") != -1)
  
file_path: pandas-ai/integration/test_cricket.py
imports: import os
  import unittest
  from pandasai import SmartDataframe
  from pandasai.llm import OpenAI
label_desc: Use image node_id 4 for calling the TestCricket obj's underlying member method code with example usage: obj.test_string_response() without return types